package lcow

import "github.com/Microsoft/hcsshim/internal/lcow"

Index ¶

• Constants
• func CreateScratch(ctx context.Context, lcowUVM *uvm.UtilityVM, destFile string, sizeGB uint32, cacheFile string) error
• func FormatDisk(ctx context.Context, lcowUVM *uvm.UtilityVM, destPath string) error

Constants ¶

const (
	// DefaultScratchSizeGB is the size of the default LCOW scratch disk in GB
	DefaultScratchSizeGB = 20
)

Functions ¶

func CreateScratch ¶

func CreateScratch(ctx context.Context, lcowUVM *uvm.UtilityVM, destFile string, sizeGB uint32, cacheFile string) error

CreateScratch uses a utility VM to create an empty scratch disk of a requested size. It has a caching capability. If the cacheFile exists, and the request is for a default size, a copy of that is made to the target. If the size is non-default, or the cache file does not exist, it uses a utility VM to create target. It is the responsibility of the caller to synchronise simultaneous attempts to create the cache file.

func FormatDisk ¶

func FormatDisk(ctx context.Context, lcowUVM *uvm.UtilityVM, destPath string) error

FormatDisk creates a utility vm, mounts the disk as a scsi disk onto to the VM and then formats it with ext4. Disk is expected to be made offline before this command is run. The following powershell commands: 'Get-Disk -Number <disk num> | Set-Disk -IsOffline $true' can be used to offline the disk.

Source Files ¶

common.go disk.go scratch.go